org.elasticsearch.search.suggest.completion2x

Class Completion090PostingsFormat

java.lang.Object

org.apache.lucene.codecs.PostingsFormat

org.elasticsearch.search.suggest.completion2x.Completion090PostingsFormat

All Implemented Interfaces:

org.apache.lucene.util.NamedSPILoader.NamedSPI

public class Completion090PostingsFormat
extends org.apache.lucene.codecs.PostingsFormat

This PostingsFormat is basically a T-Sink for a default postings format that is used to store postings on disk fitting the lucene APIs and builds a suggest FST as an auxiliary data structure next to the actual postings format. It uses the delegate postings format for simplicity to handle all the merge operations. The auxiliary suggest FST data structure is only loaded if a FieldsProducer is requested for reading, for merging it uses the low memory delegate postings format.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Completion090PostingsFormat.CompletionLookupProvider
static class	Completion090PostingsFormat.CompletionTerms
static class	Completion090PostingsFormat.LookupFactory

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	CODEC_NAME
static java.lang.String	EXTENSION
static int	SUGGEST_CODEC_VERSION
static int	SUGGEST_VERSION_CURRENT

Fields inherited from class org.apache.lucene.codecs.PostingsFormat

EMPTY

Constructor Summary

Constructors

Constructor and Description
Completion090PostingsFormat()
Completion090PostingsFormat(org.apache.lucene.codecs.PostingsFormat delegatePostingsFormat, Completion090PostingsFormat.CompletionLookupProvider provider)

Method Summary

Modifier and Type	Method and Description
CompletionStats	completionStats(org.apache.lucene.index.IndexReader indexReader, java.lang.String... fieldNamePatterns) Returns total in-heap bytes used by all suggesters.
org.elasticsearch.search.suggest.completion2x.Completion090PostingsFormat.CompletionFieldsConsumer	fieldsConsumer(org.apache.lucene.index.SegmentWriteState state)
org.elasticsearch.search.suggest.completion2x.Completion090PostingsFormat.CompletionFieldsProducer	fieldsProducer(org.apache.lucene.index.SegmentReadState state)

Methods inherited from class org.apache.lucene.codecs.PostingsFormat

availablePostingsFormats, forName, getName, reloadPostingsFormats, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CODEC_NAME

public static final java.lang.String CODEC_NAME

See Also:

Constant Field Values

SUGGEST_CODEC_VERSION

public static final int SUGGEST_CODEC_VERSION

See Also:

Constant Field Values

SUGGEST_VERSION_CURRENT

public static final int SUGGEST_VERSION_CURRENT

See Also:

Constant Field Values

EXTENSION

public static final java.lang.String EXTENSION

See Also:

Constant Field Values

Constructor Detail

Completion090PostingsFormat

public Completion090PostingsFormat(org.apache.lucene.codecs.PostingsFormat delegatePostingsFormat,
                                   Completion090PostingsFormat.CompletionLookupProvider provider)

Completion090PostingsFormat

public Completion090PostingsFormat()

Method Detail

fieldsConsumer

public org.elasticsearch.search.suggest.completion2x.Completion090PostingsFormat.CompletionFieldsConsumer fieldsConsumer(org.apache.lucene.index.SegmentWriteState state)
                                                                                                                  throws java.io.IOException

Specified by:

fieldsConsumer in class org.apache.lucene.codecs.PostingsFormat

Throws:

java.io.IOException

fieldsProducer

public org.elasticsearch.search.suggest.completion2x.Completion090PostingsFormat.CompletionFieldsProducer fieldsProducer(org.apache.lucene.index.SegmentReadState state)
                                                                                                                  throws java.io.IOException

Specified by:

fieldsProducer in class org.apache.lucene.codecs.PostingsFormat

Throws:

java.io.IOException

completionStats

public CompletionStats completionStats(org.apache.lucene.index.IndexReader indexReader,
                                       java.lang.String... fieldNamePatterns)

Returns total in-heap bytes used by all suggesters. This method has CPU cost O(numIndexedFields).

Parameters:

fieldNamePatterns - if non-null, any completion field name matching any of these patterns will break out its in-heap bytes separately in the returned CompletionStats